数组删除一行_一行Python代码能做出哪些神器的事情

短命女 2023-01-07 03:48 134阅读 0赞

声明：这些小例子都来源于网络(最后给出参考网址)，自己抱着学习的态度整理得到 。如果侵犯了作者权益，私信我我会删除掉

import requests

对于一个用C++写过爬虫的人来说，没有比这一行更加丧心病狂的了！！！

## (1)一行代码启动一个Web服务 ##

python -m SimpleHTTPServer 8080  # python2
    python3 -m http.server 8080  # python3

![6978bef8b43ae21863e332bd5e673db6.png][]

## (2)一行代码实现变量值互换 ##

a, b = 1, 2; a, b = b, a

## (3)一行代码解决FizzBuzz问题: ##

FizzBuzz问题：打印数字1到100, 3的倍数打印“Fizz”, 5的倍数打印“Buzz”, 既是3又是5的倍数的打印“FizzBuzz”

print(' '.join(["fizz"[x % 3 * 4:]+"buzz"[x % 5 * 4:] or str(x) for x in range(1, 101)]))

## (4)一行代码输出特定字符"Love"拼成的心形 ##

print('\n'.join([''.join([('Love'[(x-y) % len('Love')] if ((x*0.05)**2+(y*0.1)**2-1)**3-(x*0.05)**2*(y*0.1)**3 <= 0 else ' ') for x in range(-30, 30)]) for y in range(30, -30, -1)]))

![27ddec29d6d2d69ca0d00c463ff045c8.png][]

## (5)一行代码输出Mandelbrot图像 ##

Mandelbrot图像：图像中的每个位置都对应于公式N=x+y\*i中的一个复数、

print('\n'.join([''.join(['*'if abs((lambda a: lambda z, c, n: a(a, z, c, n))(lambda s, z, c, n: z if n == 0 else s(s, z*z+c, c, n-1))(0, 0.02*x+0.05j*y, 40)) < 2 else ' ' for x in range(-80, 20)]) for y in range(-20, 20)]))

![401de0da400d8aa60085035974b6ec47.png][]

## (6)一行代码打印九九乘法表 ##

print('\n'.join([' '.join(['%s*%s=%-2s' % (y, x, x*y) for y in range(1, x+1)]) for x in range(1, 10)]))

![b5b15f4a334414f1b3e1c44f154eac09.png][]

## (7)一行代码计算出1-100之间的素数(两个版本) ##

print(' '.join([str(item) for item in filter(lambda x: not [x % i for i in range(2, x) if x % i == 0], range(2, 101))]))
    print(' '.join([str(item) for item in filter(lambda x: all(map(lambda p: x % p != 0, range(2, x))), range(2, 101))]))

![d3cbf565d4cd2ff67362fa1ee7164b37.png][]

## (8)一行代码输出斐波那契数列 ##

print([x[0] for x in [(a[i][0], a.append([a[i][1], a[i][0]+a[i][1]])) for a in ([[1, 1]], ) for i in range(30)]])

![284db225798be9cd8aab50333862cefe.png][]

## (9)一行代码实现快排算法 ##

qsort = lambda arr: len(arr) > 1 and qsort(list(filter(lambda x: x <= arr[0], arr[1:]))) + arr[0:1] + qsort(list(filter(lambda x: x > arr[0], arr[1:]))) or arr

## (10)一行代码解决八皇后问题 ##

[__import__('sys').stdout.write('\n'.join('.' * i + 'Q' + '.' * (8-i-1) for i in vec) + "\n========\n") for vec in __import__('itertools').permutations(range(8)) if 8 == len(set(vec[i]+i for i in range(8))) == len(set(vec[i]-i for i in range(8)))]

![28a084681dab1cfd5a9292c45a809763.png][]

## (11)一行代码实现数组的flatten功能: 将多维数组转化为一维 ##

flatten = lambda x: [y for l in x for y in flatten(l)] if isinstance(x, list) else [x]

## (12)一行代码实现list, 有点类似与上个功能的反功能 ##

array = lambda x: [x[i:i+3] for i in range(0, len(x), 3)]

## (13)一行代码实现求解2的1000次方的各位数之和 ##

print(sum(map(int, str(2**1000))))

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